All data are in degrees Fahrenheit

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Water temperature in Fukuoka

Detailed information about the current water temperature in Fukuoka. The trend over the last two weeks, daily averages, and precise forecast of the water temperature changes. Gain a deeper understanding of seasonal dynamics with monthly statistical analyses covering recent years.
Sea temperature in Fukuoka now

87.5

°F

July 31, 08:52

Trend:

increasing

Yesterday:

87.1°F

Tomorrow:

87.9°F

Sunrise:

05:29

Sunset:

19:20

Day Length:

13 h. 51 min.

Fukuoka in August

Minimum:

57.2°F

Average:

58.8°F

Maximum:

60.4°F

Sea water temperature in Fukuoka today

As of now, in Fukuoka, the water temperature is 87.5°F. Swimming in water of this temperature is considered highly warm and would be enjoyable for everyone. At this temperature, you can comfortably engage in water-based activities for extended periods without experiencing discomfort. Today's reading is 4.7°F higher than the average recorded on this particular day in recent years. Since yesterday, there was a slight increase in temperature. This indicates a warming trend over the past day. According to the forecast, we expect the temperature to rise a bit.

Recent sea temperature and forecast

Today's water temperature is notably higher than the average recorded over the past two weeks, indicating a significant warming trend. It is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 86.0°F on 2024, while the historical minimum was 79.7°F on 2020.

Observations from the last two weeks indicate that the water temperature was in proximity to the highest values recorded on those days in the past. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 88.1°F, with minimum temperature starting at 87.9°F, while the maximum might reach 88.4°F.

Daily water temperature in Fukuoka

Date Current Year

actual* / forecast**

last year 10 years average
Jul 17 82.8°F 79.5°F 79.6°F
Jul 18 82.8°F 79.0°F 79.8°F
Jul 19 83.3°F 78.9°F 79.9°F
Jul 20 83.6°F 79.0°F 80.3°F
Jul 21 83.7°F 80.1°F 80.6°F
Jul 22 84.7°F 81.2°F 80.8°F
Jul 23 84.8°F 82.9°F 81.0°F
Jul 24 86.1°F 83.4°F 81.4°F
Jul 25 86.4°F 85.6°F 81.8°F
Jul 26 87.0°F 85.4°F 81.9°F
Jul 27 87.9°F 83.5°F 81.9°F
Jul 28 88.4°F 82.8°F 82.3°F
Jul 29 87.5°F 82.6°F 82.8°F
Jul 30 87.1°F 82.6°F 82.4°F
Jul 31 87.5°F 82.7°F 82.7°F
Aug 1 87.9°F 83.2°F 83.2°F
Aug 2 88.1°F 84.4°F 83.4°F
Aug 3 88.3°F 84.8°F 83.6°F
Aug 4 88.2°F 84.9°F 83.5°F
Aug 5 88.4°F 85.3°F 83.7°F
Aug 6 88.1°F 83.9°F 83.4°F
Aug 7 88.0°F 83.6°F 83.3°F

* actual - actual temperature values

** forecast - projected values for the next week

Real-time coastal temperatures could deviate by several degrees from the provided readings. These deviations often become evident following intense rainfall or strong winds.

Our forecasting methodology leverages a mathematical model, that uses current water and weather conditions, historical records, wind intensity and direction.

Sea water temperature in Fukuoka by month

In Fukuoka, the months July through October offer comfortable swimming conditions, which amounts to 112 swimming days.
The warmest water in Fukuoka was recorded on July 28, 2026, reaching a 88.4°F. While the coldest temperature occurred on March 10, 2025, dipping to 51.7°F. The average readings by season are 58.5°F in Winter, 60.3°F in Spring, 78.0°F in Summer, and 73.5°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Kitakyushu 86.0°F 30mi
Shimonoseki 85.4°F 39mi
Kumamoto 87.8°F 57mi
Nagasaki 86.2°F 66mi

* current water temperature in this city

** straight line distance from Fukuoka